760 search results - page 16 / 152 » Positional Language Models for Clinical Information Retrieva... |
SIGIR
2002
ACM
13 years 8 months ago
2002
ACM
We develop a method for predicting query performance by computing the relative entropy between a query language model and the corresponding collection language model. The resultin...
SIGIR
2002
ACM
13 years 8 months ago
2002
ACM
tion Abstract ChengXiang Zhai (Advisor: John Lafferty) Language Technologies Institute School of Computer Science Carnegie Mellon University With the dramatic increase in online in...
CLEF
2000
Springer
14 years 28 days ago
2000
Springer
This paper describes the official runs of the Twenty-One group for the first CLEF workshop. The Twenty-One group participated in the monolingual, bilingual and multilingual tasks....
IRFC
2010
Springer
14 years 1 months ago
2010
Springer
Abstract. As a low-cost ressource that is up-to-date, Wikipedia recently gains attention as a means to provide cross-language brigding for information retrieval. Contradictory to a...
AWIC
2003
Springer
14 years 7 days ago
2003
Springer
Abstract. We present a dialogue system that enables the access in natural language to a web information retrieval system. We use a Web Semantic Language to model the knowledge conv...